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MRI analysis of brain atrophy after severe closed-head injury: relation to clinical status
M C Henry-Feugeas1, P Azouvi, A Fontaine
1Department of Radiology, Bichat Claude Bernard Hospital, Paris, France. marie-cecile.henry-feugeas@bch.ap-hop-paris.fr
Abstract:
The purpose of this study was to determine the clinical correlates of supratentorial ventricular dilations and of corpus callosal atrophy at the subacute stage after a severe closed-head injury (CHI). Thirty-three CHI patients underwent MRI 2 months or more after injury. Morphometric measures were compared to clinical data (coma score, coma duration and Glasgow Outcome Scale). There were numerous significant correlations between clinical data and mid-third ventricle and frontal horns measurements. Fewer significant correlations were found with the lateral ventricle bodies and the corpus callosal body. There was no significant correlation with the posterior part of the corpus callosum and of the ventricles. Corpus callosum atrophy correlated significantly with anterior and deep ventricular dilatation. In conclusion, the best indicator of clinical status was ventriculomegaly, and particularly third ventricle enlargement, which probably reflects the extent of both anterior and deep white matter lesions.
Insights
Severe closed-head injury (CHI) can cause ventricular dilation and corpus callosal atrophy. Ventriculomegaly, especially third ventricle enlargement, best indicates clinical status after CHI, reflecting white matter damage.
Area of Science:
- Neuroscience
- Radiology
- Neurology
Background:
- Severe closed-head injury (CHI) can lead to significant brain structural changes.
- Understanding the relationship between imaging findings and clinical outcomes is crucial for patient management.
Purpose of the Study:
- To identify clinical correlates of supratentorial ventricular dilation and corpus callosal atrophy.
- To assess these changes in the subacute stage post-severe CHI.
Main Methods:
- MRI scans were performed on 33 CHI patients at least 2 months post-injury.
- Morphometric measurements of ventricles and corpus callosum were correlated with clinical data.
- Clinical data included coma score, coma duration, and Glasgow Outcome Scale.
Main Results:
- Significant correlations were found between clinical data and measurements of the mid-third ventricle and frontal horns.
- Fewer correlations were observed with lateral ventricle bodies and the corpus callosum.
- Corpus callosum atrophy significantly correlated with anterior and deep ventricular dilation.
Conclusions:
- Ventriculomegaly, particularly third ventricle enlargement, is the best indicator of clinical status after severe CHI.
- These findings suggest that ventriculomegaly reflects the extent of anterior and deep white matter lesions.